Also, Plato also didn't come into existence in a void. The exact creation date of the Iliad isn't known, but it's assumed to be around the 8th or 9th century BC

Also, Plato also didn't come into existence in a void. The exact creation date of the Iliad isn't known, but it's assumed to be around the 8th or 9th century BC. That means that Greece had a culturally stable society for some 500 years before Plato was born, even though it was mostly composed of interdependent city states rather than central rule. The first time that was achieved was under Alexander the Great, so well after Plato.